Type-writing machine.



J. A. WHITCOMB.

TYPE WRITING MACHINE. APPLICATION FILED JULY 14, I910.

1,02 1 1 20. Patented Mar. 26, 1912' UNITED STATES PATENT OFFICE.

for supporting the mechanisms used in a typewrltingmachine; v

The principal-object-of; the invention is to provide alight, strong-andartistic frame which i s designed partieularly with referencetoilightness and strengtlnfor the reasonthat it is primarily intendedtobeus'ed in connection with machines of the j folding type, which areparticulai'lyiadaptcd for the use of travelers. I

- Another object of "the-invention is to provide a frame, the mainportion of which,

i. e., the back and two sides, may be stamped out and formed from asingle piece of metal.

A further object of the invention is to provide a machine frame,thelnajor portion of which is stamped from a single piece of metal andwhich is formedwith openings in the-sides thereof in such manner as toleave an outlined form having braced 'portions connccting'thesides ofthe'outline.

A still further-object o'f'the invention is to provide 'a"machine framefor typewriters which is formed by constructing the hack and two sidesfrom a single piece of metal bent substantially into U-shape form andhaving the open end of the U toward the frontof the machine and bystrengthening the front of the machine frame by means of a cross bracebetween the extreme point of the side fronts and by interposing anotherbrace member between the side frames at portion,

substantially their upper middle the last mentioned 1 brace constitutingthe front board of the typewriting-machine.

A still further object of the invention is to provide a typewritingmachine frame, the back and sides .of whichhare constructed from asingle piece of sheet metal and by strengthening the rear cornersthereof by means of brace plates, which also form a sutlicient expanseof surface upon which to properly attach-cushions or feet beneath themachine frame. I A still further o ject of the invention i rYrE-Wm'rmemacnmn;

I Specification of Letters latcnt.

Application filcd-Ju1y' 14, 1910. Serial No..571,902.

JAMES A. WHITCOMB, OF MCALESTER, .OKLAHQMA.

at nted Mar. 26, 1912.

cushions or feet beneath the machine frame of a typewrit ng machine,which mach1ne frame is formed from stamped sheet metal.

'Other and more specific objects of this in vention will in part beobvious'and will in part-be pointed out in the specification hereinafterfollowing by reference to the accompanying-drawings which form "a partof this application, and the scope of the invention will be indic atedbythe claims.

Referring particularly to the drawings wherein like'numerals' are usedthroughout the several figures to indicate like parts, Figure 1 is aperspective view .taken in the rear of the machine frame, showing theframe in perspective elevation. -Fig. 2 is a perspective viewof themachine frame taken from the front thereof'and showing the frame infront perspective elevation. Fig. 3 isa detail of one of the cornerbraces used at therea'r corners of. the machine frame. 'Fig. 4 is aperspective detail of one of the front corners of the machine, shown ininverted relation in order to illustrate the structure for attachingcushions or feet beneat-h the front ends of the machine. Fig. 5 is adetail. sectional elevation showing the manner of attaching cushionfeet. v

In a typewriting machine of the folding type it is'particularlydesirable that the several. elements of. the machine ,be made as I lightas is possible and at the same time be ing up under the hardusage towhich a typewriting machine is apt to be subjected.

portion A is formed with a longitudinal -base bar 4 and an upper bar 5,'which is curved at its middle portion to correspond with the curvatureupon which type bar hangers (not shown) are adaptedto be set. The upperbar 5 is provided with two'rows of concentric openings 6, through which.

screws are-adapted to be passed in order to securely fasten the type barhangers to the segmentformed upon the upper bar 5. The upper bar 5 andthe longitudinal base bar 4,

to provide a novel structure forv attaching are tied together at theinmiddle portions by constructed in such manner as to present suiiicientstrength to give the necessary rigidity thatnvill insure the machinestand- The typcwriting machine frame disclosed order to give stiffnessor rigidity and is provided with a strip of felt 18 upon a short crossbar 7. The short cross bar 7 ties the several elements of the rear walltogether in such manner as to form a rigid solid back wall forsupporting the type bar action. I

The side portions B and G of the machine, are identical in conformation,with the exception of a fcw openings for screws which'are adapted tohold various portions of the operative mechanisms in the machine frame.Since the side portions B andt vertical offset brace bars 10 near theirup- 25' per ends, and are attached at their front ends with the frontportion of the base bars 9. The forwardly extending curved struts '11,are formed on their upperends with a flat base portion upon which afront board 12 is adapted to be screwed by means of screws 14. Thecurved struts 11, are cut away upon the upper portion of their frontends in the form of a small segment of a circle 15, in order to form aresting place for a platen (not shown). bled machine is folded over forpurposes of transportation or carrying, after a manner well "known inthe construction of folding typewrit-ers common in the typewriter art.

A front cross bar 16 is attached beneath the forward ends of the basebars 9, by means of screws 17. This cross bar consists of a flat pieceof metal formed in L-shape, or L bar, in to the bar,

its upper surface in order to cushion any of the key bars (not shown),which may he accidentally forced into engagement with the front bar. Atype bar rest 19, is attached to the side portions B and O, by means ofscrews 20, and extends across the upper middle portion of the machinejust rearward ofthe front board'12. The segmental portion of the typebar rest is covered with a strip of felt 2], in order to form a cushionupon which the heads of the type bars are adapted to rest. Side bars 22,

which are indicated by dotted lines, are top bars 8, by

adapted to be pivoted tothe means of screws which pass through openings24 in the forward portion of the top bars. The side bars 22 are adaptedto carry the carriage portions of the machine (not shown} in a mannerwell known in the art of folding typewriters.

when the assem- I In a machine frame of thistypeconsiderable difficultyhas been experienced in finding a practical means for attaching cushionfeet beneath the typewriter frame. '-In the construction herein shown,the rear corners 1 and 2 of the machine frame, arestrengthened by meansof triangular plates 25 and.

26, which are fixedly attached beneath the I rear corners 1 and 2, byineans of screws 27, which are firmly seated in the machine' frame. Thetriangular plates 25mm 26 perform the double function of stiffeningthecorners of the machine frame and also of providing a sufficientexpanse of surface upon which to'attach cushi0n feet 28., The cushionfeet '28. may be formed of rubber,

felt or any other'weil known resilient material, and are attached to theplates 25 and r 26 by means of small stub screws 29, whichpassdownwardly through the triangular plates 25and-f2 6 and engage smallnuts 30, which are sctiin the cushion feet2 8.- Similar cushion feet 31,are attached near'each .end of the front cross bar by passing screws 32downwardly through the front board into engagement with nuts 34, intheinterior of the cushion feet. Thus it will be seen that the cushion feetupon which the machine rests are all attached. to under braces of themachine frame. and are attached firmly in 'a .manner which insuresthatthe act will not-:be .torn from their seats when the machine isundergoing the rough usages to whieh'a portable machine is apt to besubjected.

In the structure herein shown and described, the several'elements of themachine frame comprising the rearand the side portions thereof, as hasbeen pointed out, are adapted to be formed from a unitary piece ofmetal, preferably aluminum. But I desire that-it shallbe understoodiasbeing within the scope of my invention to form amachine frame comprisingthe several elements by cutting out the several braces and bars andattaching them together, either by soldering or by riveting,

1n a mannerjwell understood in the metal working arts. Havingthusdescribed my invention what I desire to claim is 1. A typewritingmachine frame comprising aback portion formed with a base bar, an upperar provided with a segment adapted to receive type-bar hangers, a connecting bar extending between said base bar and said upper bar; sideportions formed with top bars, base bars, forwardly extending curvedstruts, connecting bars connecting said top bars and said .base bars; afrontboard extending between said side portions and attached thereto,and a frontcross bar.

2. In a typcwriting machine frame the combination of a back portion,side portions connected. to said back portion in such manner to formcorners, triangular brace members attached tovsaid' back and said sideportions at each of said corners, said triangular brace members beingadapted to hold cushion feet, a front cross bar extend ing between said.side portions and adapted to hold cushion feet.

31in a typewriting machine frame the comloination of a back portion,side portions attached to said back portion in such mannor as to formcorners, bracemembers at tached to said back portion and said sideportions at each of said'corners and adapted to receive cushion feet, afront board extending between said side portions and attached. thereto,a front cross bar attached beneath the forward portion of said sideportions, said side portions being formed of braces arranged in suchmanner as to substantially comprise a rectangular portion and atriangular portion forward of said rectangular portion.

A typewriting machine frame oomprising a back portion, side portionsformed from a single piece of sheet metal, said back portionand saidside portions being cut away in such manner as to leave a skeleton frameof substantially the outline of the outside boundary lines of saidmachine frame, said frame including in the back portion a segmentadapted to receive type bar hangers.

A typewriting machine frame comprising a back portion, side portionsformed from a single piece of sheet metal, having portions thereof cutaway to form a skeleton frame Work and a segment for receiving barhangers, and bracing means adapted to hold cushion feet and to connectthe 40 sides of said frame.

6. In a typewriter, a frame having threeintegral sides, each side havinga continuous base bar and a continuous top bar, the top bar of the rearside including a scgment adapted to receive bar hangers, the; top barsof the lateral sides including in each a horizontal portion and adownwardly sloping portion integral with the base bar,

a front board connecting the upper portions of the sloping bars, barsconnecting the top bars and the base bars, and a front cross bar.

JAMES A. VVHITCOMB. Witnesses:

E. E. ST. GERMAIN, .M. B. NICHOLS.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, I). G.

